# Zevenue

> Zevenue is a Toronto-based GTM engineering firm. We build and run go-to-market systems for B2B startups - outbound infrastructure, AI-native workflows (Claude Code and Cowork), enrichment pipelines, and experimentation engines that make revenue repeatable - then teach client teams to run them.

This file helps AI agents and LLM-based tools read Zevenue's site efficiently. The links below point to clean, text-first versions of our content. Video testimonials and masterclasses are published on YouTube; because their substance lives in the audio, we also publish edited text transcripts (linked below) so an agent can read what was actually said.

## Video testimonials (transcripts)

- [Tom Lovett - VP of Growth, SweatPals](https://zevenue.com/transcripts/tom-lovett-sweatpals.md): Video testimonial transcript. Scaling a sales-led motion with competitor scraping, deep enrichment, social outbound, and bespoke Claude-engineered lead-discovery tools.
- [Tony Hocevar - CMO, Una AI](https://zevenue.com/transcripts/tony-hocevar-una.md): Video testimonial transcript. FP&A platform selling to CFOs; Zevenue built the entire outbound email infrastructure, weekly Clay enrichment, segmentation, and ABM/nurture plays for a hard-to-reach enterprise audience.
- [Brian Estioko - Director of Sales, DemandHub](https://zevenue.com/transcripts/brian-estioko-demandhub.md): Video testimonial transcript. SMB SaaS; Zevenue refined the outbound email strategy - deliverability hygiene, targeting, copywriting, cadences - and the team reports a 7x increase in positive reply rate.

## Guides and masterclasses (transcripts)

- [Claude Code GTM Masterclass](https://zevenue.com/transcripts/claude-code-gtm-masterclass.md): Full transcript of a 60-minute deep dive on using Claude Code for go-to-market - scoring tens of thousands of prospects in minutes, pulling sales-call data via MCP, hooks and subagents, Claude Code vs. Clay, and the /goal command for campaign analysis.

## Key pages

- [Home](https://zevenue.com/): What Zevenue does - GTM engineering and AI enablement for B2B startups.
- [Testimonials](https://zevenue.com/testimonials): Video and written testimonials from founders, VPs, and operators.
- [Learn](https://zevenue.com/learn): Playbooks, walkthroughs, and field notes on GTM engineering and AI enablement.
- [Blog](https://zevenue.com/blog): Long-form writing on GTM engineering, cold email, deliverability, and AI-native GTM.
- [Contact](https://zevenue.com/contact): Get in touch or book a call.

## Blog posts

- [Our Agent Chain Silently Routed Around a Broken Data Contract](https://zevenue.com/blog/the-agent-chain-that-looked-healthy): A postmortem from our production GTM chain: three writer stages drifted off the shared record contract, a downstream stage quietly reconstructed the missing state, and every run finished green. What broke, why nothing caught it, and the offline evaluator that now blocks the commit.
- [Introducing Headless GTM](https://zevenue.com/blog/introducing-headless-gtm): We're open-sourcing the outbound stack we run for clients - discovery, signals, judgement, and verified emails as Claude Code and Codex skills on raw vendor APIs. Keep the data vendors, drop the dashboards. The interface is the agent.
- [The Post-Fable Repo](https://zevenue.com/blog/the-post-fable-repo): Claude 5 models don't make scaffolding disappear - they change which scaffolding matters. How we rebuilt our GTM skills repo around three layers: operational knowledge the model can't know, judgment calibrated to our business, and controls it isn't allowed to improvise around.
- [Which Frontier Models Can Tell if Your AI Company Actually Ships? We Tested 12 of Them](https://zevenue.com/blog/can-frontier-models-spot-ai-washing): We ran 12 frontier and open-weight models against one rubric on frozen evidence from 243 funded AI companies. Above $22 per thousand accounts price stopped buying accuracy, one version bump moved more than any lab gap - and 96 companies get flagged as fake AI by every model.
- [Evals for GTM Teams](https://zevenue.com/blog/evals-for-gtm-teams): Most GTM teams running AI can't tell you whether it works. Evals are the QA function GTM AI is missing - why errors compound, why failures are silent, and what a working eval looks like end to end.
- [Claude Code Guide to GTM](https://zevenue.com/blog/claude-code-guide-to-gtm): How we build a full go-to-market system on Claude Code at Zevenue - the six building blocks (skills, subagents, hooks, MCP, plugins, routines) mapped to every stage of GTM. The written companion to our Claude Code Masterclass.
- [Applied AI in Your GTM Team](https://zevenue.com/blog/applied-ai-in-your-gtm-team): Most GTM teams say they've adopted AI. What they mean is someone has a chat window open. There are three levels of applied AI capability, and the distance between where most teams stall and where the real value sits keeps growing.
- [The end of the industry filter](https://zevenue.com/blog/the-end-of-the-industry-filter): For a decade, sales lists have been filtered on a taxonomy built for government statistics. What changes when the unit of the filter moves to what a company actually does - its integrations, hiring, case studies, the pages on its website.
- [Moving away from the old GTM tech stack](https://zevenue.com/blog/moving-away-from-the-old-gtm-tech-stack): What used to take six weeks now takes an afternoon. A live demo from the Claude for Marketers & GTM event in Toronto - and the case for why the old GTM tech stack is on its way out.
- [The Problem with AI SDRs](https://zevenue.com/blog/the-problem-with-ai-sdrs): Why the best outbound systems won't come in a box. AI SDR tools churn at 50-70% annually because they can't hold your internal context - and context is the whole game.
- [Hiring a Great GTM Engineer Is Actually Hard](https://zevenue.com/blog/hiring-a-great-gtm-engineer-is-actually-hard): There are four types of candidates who show up for GTM engineer roles, and each one is missing something critical. Here's why the gap is structural, not temporary.
- [Claude Code Onboarding Guide](https://zevenue.com/blog/claude-code-onboarding-guide): The quickest way to get started with Claude Code. What to focus on and how to get comfortable with terminal-based AI development.
- [Why Your GTM Team Hasn't Adopted Claude Code Yet](https://zevenue.com/blog/why-your-gtm-team-hasnt-adopted-claude-code): The four most common objections GTM leaders give for not using Claude Code — and why none of them hold up.
- [What 15 Hours of Autonomous Coding Means for Your GTM Org](https://zevenue.com/blog/15-hours-of-autonomous-coding-for-gtm): AI autonomous coding ability jumped from 4 hours to 15 in two months. Here's what that means for GTM teams and why the most important hire is a GTM engineer.
- [Claude Code for GTM: Part 2 — Compound Engineering](https://zevenue.com/blog/claude-code-for-gtm-part-2): Claude Code remembers everything you build and gets better over time. Here's why compound context, not prompting skill, is the real unlock for GTM teams.
- [I Spent Ten Years Writing Cold Emails — Here's What Claude Code Taught Me About GTM](https://zevenue.com/blog/ten-years-of-cold-email): The Signal, Bridge, Voice framework for cold email and why code is the natural tool for the entire GTM pipeline.
- [Claude Code for GTM: Part 1 — Context Is the Bottleneck](https://zevenue.com/blog/claude-code-for-gtm-part-1): The models are smart enough. The bottleneck is whether they have the right context at the right time. Here's how to make Claude Code actually work for GTM.
- [Your Reps Are Emailing People Who Don't Work There Anymore](https://zevenue.com/blog/crm-data-hygiene): The 3 types of sales orgs, ranked by data hygiene — and the 4-step system to stop wasting your reps' time on stale contacts.
- [Five AI Moments That Changed How We Think About GTM](https://zevenue.com/blog/five-ai-moments-that-changed-gtm): A timeline of the five AI breakthroughs that reshaped how we build and run go-to-market systems — from ChatGPT to Claude Code.
- [AI Inbox Just Changed Cold Email Forever](https://zevenue.com/blog/ai-inbox-and-cold-email): Gmail's AI inbox means you're now writing to prove yourself to an LLM, not just a human. Here are the 4 layers you need to get through.
- [GTM Engineering Is Dominating Tech Spend](https://zevenue.com/blog/gtm-engineering-is-dominating-tech-spend): Brex analyzed spend data from 35,000 companies. The fastest-growing tools are almost all GTM engineering. Here's what that means for teams still running the old playbook.
- [GPT-5: Reasoning Tokens Change the Math](https://zevenue.com/blog/gpt5-for-gtm-reasoning-tokens): GPT-5 is a reasoning model, not a base model upgrade. Here's how that changes token economics and when to actually use it in GTM workflows.
- [Phase 1 vs Phase 2 AI: Why Data Is the Real Moat](https://zevenue.com/blog/phase-1-vs-phase-2-ai): Bolting AI onto existing features is Phase 1. Rebuilding around proprietary data and context is Phase 2. Here's what that means for GTM teams.
- [GPT-5 Just Launched — What GTM Teams Need to Know](https://zevenue.com/blog/gpt5-launch-what-gtm-teams-need-to-know): A practitioner's breakdown of the GPT-5 launch: 1M context window, cheaper API pricing, unified reasoning, and what it all means for outbound and GTM workflows.
- [Stop Overengineering Your Sales Process](https://zevenue.com/blog/stop-overengineering-your-sales-process): Automation without understanding is wasted effort. A 3-question diagnostic for whether your team is ready to build workflows.
- [How to Get Out of Spam Trouble](https://zevenue.com/blog/how-to-get-out-of-spam-trouble): It turns out the campaigns you've worked so hard on are landing in spam. Here's how to diagnose, recover, and prevent deliverability problems.
- [Why Spintax Is Dying (And the 3-Step Clay Process That Replaced It)](https://zevenue.com/blog/why-spintax-is-dying): We tested 10,000 emails in Q1 and watched deliverability crash. Here's why spintax stopped working and the Clay-based process we built to fix it.
- [How Zevenue Got Its First Clients (Not Through Cold Email)](https://zevenue.com/blog/how-zevenue-got-its-first-clients): The origin story of Zevenue — from failed software to Slack communities to organic inbound. Four rules for building real relationships in founder communities.
- [Lessons From Moving Upmarket](https://zevenue.com/blog/lessons-from-moving-upmarket): What Zevenue learned working with bigger startups in 2024 — bigger doesn't mean easier, just different challenges.
- [412 Spam Words to Avoid in Emails](https://zevenue.com/blog/412-spam-words-to-avoid-in-emails): A comprehensive list of trigger phrases that spam filters flag as harmful or fraudulent, organized by category.
- [9 Best Email Warmup Tools](https://zevenue.com/blog/9-best-email-warmup-tools): A comparison of the top email warmup tools for sales teams, with pricing, features, and key selection criteria.
- [Best Email Provider to Use](https://zevenue.com/blog/best-email-provider-to-use): Gmail, Outlook, or Zoho — which email provider should your startup use for sales outreach? A comparison of deliverability, cost, and setup.
- [Hiring an SDR vs Outbound Agency](https://zevenue.com/blog/hiring-an-sdr-vs-outbound-agency): A comparison of hiring internal sales development reps versus partnering with an outbound agency — cost, ramp time, expertise, and scalability.
- [The Guide to Email Warmup](https://zevenue.com/blog/the-guide-to-email-warmup): Everything you need to know about email warmup — why it matters, how it works, timelines, and manual versus automated approaches.
- [Benchmarks: What Does a Good Campaign Look Like?](https://zevenue.com/blog/benchmarks-what-does-a-good-campaign-look-like): The four metrics that matter for cold email campaigns — bounce rates, reply rates, message variation, and spam reporting thresholds.
- [Configuring Domain Name Servers (DNS) for Email Outreach](https://zevenue.com/blog/configuring-dns-for-email-outreach): A technical guide to setting up SPF, DKIM, and DMARC records for email deliverability in outbound campaigns.
- [Which Domain Should You Use for Sales Outreach?](https://zevenue.com/blog/which-domain-should-you-use-for-sales-outreach): Why using your primary company domain for outbound sales is a mistake, and what to do instead.
- [How to Analyze Your Cold Email Strategy](https://zevenue.com/blog/how-to-analyze-your-cold-email-strategy): A seven-step framework for analyzing cold email campaigns — from categorizing themes to identifying patterns that drive results.
- [Zevenue's Cold Email Guide for Startups](https://zevenue.com/blog/cold-email-guide-for-startups): How to craft cold emails that convert into booked sales calls — strategies, frameworks, and 15 real-world examples from 100+ campaigns.
- [Should I Sell to SMB or Enterprise Businesses?](https://zevenue.com/blog/should-i-sell-to-smb-or-enterprise): One of the first decisions a startup makes — targeting SMBs or enterprise. Here's how to think about qualification, sales cycles, and where to start.

## More

- YouTube channel: https://www.youtube.com/@GTM_Yusuf
- LinkedIn: https://linkedin.com/company/zevenue
- Book a call: https://calendly.com/zevenue/chat